WO2016116185A1 - Procédé pour faire fonctionner un système de pile(s) à combustible et système de pile(s) à combustible associé - Google Patents

Procédé pour faire fonctionner un système de pile(s) à combustible et système de pile(s) à combustible associé Download PDF

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Publication number
WO2016116185A1
WO2016116185A1 PCT/EP2015/075960 EP2015075960W WO2016116185A1 WO 2016116185 A1 WO2016116185 A1 WO 2016116185A1 EP 2015075960 W EP2015075960 W EP 2015075960W WO 2016116185 A1 WO2016116185 A1 WO 2016116185A1
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WO
WIPO (PCT)
Prior art keywords
cathode
cathode fluid
fluid
fuel cell
anode
Prior art date
Application number
PCT/EP2015/075960
Other languages
German (de)
English (en)
Inventor
Sönke Gössling
Rene Savelsberg
Maximilian WICK
Original Assignee
Fev Gmbh
Zbt Gmbh - Zentrum Für Brennstoffzellentechnik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fev Gmbh, Zbt Gmbh - Zentrum Für Brennstoffzellentechnik filed Critical Fev Gmbh
Publication of WO2016116185A1 publication Critical patent/WO2016116185A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H01M8/04179—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by purging or increasing flow or pressure of reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04335—Temperature; Ambient temperature of cathode reactants at the inlet or inside the fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/0435—Temperature; Ambient temperature of cathode exhausts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04395—Pressure; Ambient pressure; Flow of cathode reactants at the inlet or inside the fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/0441—Pressure; Ambient pressure; Flow of cathode exhausts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H01M8/04604—Power, energy, capacity or load
    • H01M8/04619—Power, energy, capacity or load of fuel cell stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04828—Humidity; Water content
    • H01M8/04835—Humidity; Water content of fuel cell reactants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the fuel cell system The fuel cell system
  • the present invention relates to a method of operating a fuel cell system, the fuel cell system comprising at least an anode and cathode fuel cell, an anode fluid system having an anode fluid supply and an anode fluid discharge, a cathode fluid system having a cathode fluid supply and a cathode fluid discharge, and a control device.
  • the invention further relates to a fuel cell system, comprising at least one anode and cathode fuel cell, an anode fluid system having an anode fluid supply and an anode fluid discharge, a cathode fluid system having a cathode fluid supply and a cathode fluid discharge, and a control device.
  • Fuel cell systems are widely used in modern technology as energy sources.
  • Such fuel cell systems usually have a plurality of fuel cells, which are in particular often designed as membrane fuel cells, comprising an anode, a cathode and a membrane arranged therebetween.
  • the membrane in such a membrane electrode assembly (MEA, Membrane Electrode Assembly) separates inside the fuel cell a gas space of the cathode from a gas space of the anode.
  • MEA Membrane Electrode Assembly
  • the cathode fluid in a cathode fluid supply which flows into the cathode, is moistened by cathode fluid in a cathode fluid discharge, which flows out of the cathode after reactions in the gas space of the cathode and carries the water produced in the reactions.
  • the object is achieved by a method for operating a fuel cell system, the fuel cell system comprising at least an anode and cathode fuel cell, an anode fluid system with an anode fluid supply and an anode fluid discharge, a cathode fluid system with a cathode fluid supply and a cathode fluid removal, and a control device.
  • a method according to the invention is characterized by the following steps: a) measuring a temperature of a cathode fluid in the cathode fluid system,
  • step d) determining a stoichiometry for the cathode fluid in the cathode fluid system depending on the quantities determined in steps a), b) and c), and e) Control the stoichiometry of the cathode fluid to the value determined in step d).
  • cathode fluid is supplied to the cathode through the cathode fluid supply, which subsequently flows through a gas space of the cathode and is conducted away from the fuel cell again by a cathode fluid discharge.
  • air is often used as the cathode fluid, in particular air compressed by a compressor.
  • water is generated as a waste product by the reactions of the cathode fluid with an anode fluid in the fuel cell in the cathode fluid.
  • An absorption capacity for this water in the cathode fluid is dependent in particular on a temperature of the cathode fluid and the pressure of the cathode fluid.
  • steps a) and b) of a method according to the invention the variables temperature and pressure of the cathode fluid are measured.
  • step c) of the method according to the invention an electrical nominal power, that is to say the electrical power which is to be produced by the fuel cell system, is determined.
  • the steps a), b) and c) are carried out successively in any order, but also simultaneously.
  • the desired electrical power determines the number of reactions between the cathode fluid and the anode fluid, since energy is generated in the fuel cell by these reactions. This number of reactions determines both the amount of water produced in the cathode and the amount of spent cathode fluid.
  • a sufficiently large amount of additional cathode fluid must be present, which does not participate in the reactions for energy production.
  • the water absorption capacity of the cathode fluid by measuring the temperature and the pressure of the cathode fluid in steps a) and b) can be determined from the method according to the invention, it can also be calculated from the amount of cathode fluid, which must be available for receiving the water produced.
  • a stoichiometry of the cathode fluid is defined as the ratio of the mass flow of the cathode fluid supplied to the cathode of the fuel cell to the mass flow of the cathode fluid consumed in the gas space of the cathode during reactions.
  • step d) of the method according to the invention the mass flow of supplied cathode fluid is determined to be the sum of a mass flow of cathode fluid consumed for generating the target power of the fuel cell system and a mass flow of additional cathode fluid needed to absorb the produced water.
  • the stoichiometry determined in step d) of the method according to the invention is then obtained from the thus determined mass flow of supplied cathode fluid divided by the mass flow of spent cathode fluid.
  • step e) of the method according to the invention the stoichiometry of the cathode fluid is regulated to the value determined in step d).
  • a humidity of the cathode fluid inside the gas space of the cathode can be maintained at an ideal value at all times, especially without the need for external or internal humidification.
  • a safe and efficient operation of a fuel cell system can be ensured by a method according to the invention, whereby at the same time the fuel cell system can be made simpler and more compact due to the possible omission of external or internal humidification devices.
  • a product water quantity is calculated from the nominal electrical power determined in step c).
  • a quantity of product water is the amount of water that is generated during operation of the fuel cell.
  • the setpoint electrical power determined in step c) determines how much energy is generated in the fuel cell and thus how many reactions take place between the cathode fluid and the anode fluid in the fuel cell. Since the amount of water generated in each of these reactions is known, the total amount of product water can be determined very easily therefrom.
  • a dew point of the cathode fluid is determined. The dew point of the cathode fluid depends directly on the temperature and the pressure of the cathode fluid, which have been measured in steps a) and b) of a method according to the invention.
  • the dew point determines the amount of water that can be absorbed by a certain volume of cathode fluid. Together with the known from the electrical target power generated and thus available amount of water so easily the required mass flow of cathode fluid for receiving this amount of water can be calculated. As stated above, this mass flow of unconsumed cathode fluid is an essential input parameter in determining the stoichiometry of the cathode fluid in step d). This setting of the stoichiometry for the cathode fluid can thus be made particularly simple.
  • a look-up table in particular a steam panel, is used for determining the dew point of the cathode fluid.
  • a look-up table makes it particularly easy to determine the dew point of the cathode fluid for a particular combination of pressure and temperature of the cathode fluid. This is in particular that no calculation of the dew point must be made.
  • the data of the look-up table, in particular the vapor table can be determined in advance in particular. Such a look-up can be made particularly quickly and is particularly easy to implement in circuits or computer programs.
  • the method according to the invention particular preference can furthermore be provided for regulating a mass flow of the cathode fluid in the cathode fluid supply line during the regulation of the stoichiometry in step e).
  • the stoichiometry of the cathode fluid is composed of a mass flow of cathode fluid, which in reactions in the Fuel cell is consumed as well as from a mass flow of additional cathode fluid, which is not consumed in these reactions. A sum of these two quantities results in a mass flow of cathode fluid, which is supplied in the cathode fluid supply to the gas space of the cathode.
  • the stoichiometry of the cathode fluid is, in particular, the ratio of the total mass flow of cathode fluid supplied to the cathode to the mass flow of cathode fluid consumed in the cathode.
  • the mass flow of unconsumed cathode fluid is thus directly increased or decreased, whereby the stoichiometry of the cathode fluid changes.
  • a method according to the invention can be designed such that a regulation of the pressure of the cathode fluid is carried out as a function of the mass flow of the cathode fluid in the cathode fluid supply line which is regulated in step e).
  • a regulation and in particular by a change in the mass flow of the cathode fluid in the cathode fluid supply a change in the pressure of the cathode fluid can also be established.
  • this can be detrimental to the operation of the fuel cell, since this can set, for example, the pressure conditions in the fuel cell and in particular a pressure difference between the fluids in the anode and the cathode of the fuel cell.
  • this can lead to impairment or even damage to the fuel cell, for example, in the case of particularly high pressure differences.
  • the pressure of the cathode fluid By regulating the pressure of the cathode fluid as a function of the mass flow of the cathode fluid controlled in step e), it is possible to set the pressure such that precisely this change in pressure caused by the mass flow change does not occur.
  • the pressure may be controlled to remain constant while at the same time changing the mass flow of cathode fluid flowing in the cathode fluid supply.
  • a decoupling of the pressure of the cathode fluid and the mass flow of cathode fluid is characterized allows.
  • a fuel cell of a fuel cell system can be used in a particularly versatile manner by a method according to the invention.
  • step a) and / or step b) and / or step c) and / or step d) and / or step e) are carried out continuously or at least substantially continuously.
  • Continuous within the meaning of the invention means that the respective steps are carried out continuously and without interruption. A continuous execution of the corresponding steps of a method according to the invention can thereby take place.
  • the individual steps are performed at a frequency of about 10 Hz, preferably about 100 Hz, more preferably about 1 kHz.
  • a method according to the invention can be designed such that in step a) the temperature of the cathode fluid in the cathode fluid supply and / or the cathode fluid discharge is measured.
  • measuring the temperature directly in the cathode is often not possible.
  • measurements of the temperature are made particularly close to the gas space inside the cathode. Both temperature measurements are preferably carried out and, for example, the mean temperature of the cathode fluid in the cathode is determined by suitable averaging.
  • a particularly simple determination of the temperature of the cathode fluid in the cathode with high accuracy can be achieved thereby.
  • a method according to the invention can be designed such that in step b) the pressure of the cathode fluid in the cathode fluid supply and / or the cathode fluid discharge is measured.
  • the pressure of the cathode fluid it is also particularly advantageous with regard to the pressure of the cathode fluid to know the pressure of the cathode fluid inside the cathode. Again, a direct measurement of the pressure of the cathode fluid inside the cathode is often not possible.
  • a fuel cell system comprising at least one anode and cathode fuel cell, an anode fluid system having an anode fluid supply and an anode fluid discharge, a cathode fluid system having a cathode fluid supply and a cathode fluid discharge, and a control device.
  • An inventive fuel cell system is characterized in that the control device is designed to carry out a method according to the first aspect of the invention. Accordingly, a fuel cell system according to the invention brings the same advantages as have been explained in detail with reference to a method according to the invention according to the first aspect of the invention.
  • the fuel cell system has all the necessary components to supply the control device with the necessary input data, such as the temperature and pressure of the cathode fluid and the desired electrical power, as well as in step e).
  • the method according to the invention provided to control the stoichiometry of the cathode fluid.
  • a Massenstromregelvomchtung in particular a controllable compressor, is provided for controlling the mass flow of the cathode fluid.
  • a mass flow control device makes it particularly easy to influence and regulate the mass flow of supplied cathode fluid and thus the stoichiometry of the cathode fluid.
  • a compressor represents a particularly simple Massenstromregelvomchtung, since, for example, by a simple change in a speed of the compressor, the mass flow of cathode fluid can be increased or decreased by the compressor.
  • Fig. 1 is an illustration of a method according to the invention.
  • Fig. 2 shows an inventive fuel cell system.
  • a temperature of a cathode fluid 33 in a cathode fluid system 30 of a fuel cell 11 of a fuel cell system 10 is measured.
  • the temperature sensors 18 required for this purpose can be arranged, for example, in a cathode fluid supply 31 or a cathode fluid discharge 32.
  • a plurality of temperature sensors 18 may be provided at different locations of the cathode fluid system 30, whereby in particular the Measurement accuracy when measuring the temperature of the cathode fluid 33 can be increased.
  • a pressure of the cathode fluid 33 in the cathode fluid system 30 is measured.
  • the pressure of the cathode fluid 33 can also be measured at one, but preferably at several points in the cathode fluid system 30.
  • the pressure sensors 17 required for this can likewise be arranged in the cathode fluid supply 31 or the cathode fluid discharge 32. Even when measuring the pressure can be increased by repeated measurements at different locations of the cathode fluid system 30, the accuracy of the measurement.
  • an electrical nominal power of the fuel cell system 10 is determined.
  • the nominal electrical power of the fuel cell system 10 is that electrical power that is to be made available by the fuel cell system 10 for a consumer.
  • steps a) 100, b) 101 and c) 102 are carried out successively in any order, but also simultaneously.
  • the quantities determined or measured in steps a) 100, b) 101 and c) 102 are used in the following step d) 103 to establish a stoichiometry for the cathode fluid 33 in the cathode fluid system 30.
  • a dew point of the cathode fluid 33 can be determined, which correlates directly with the water absorption capacity of the cathode fluid 33. So that the produced water in In particular, the cathode 13 can be completely accommodated, a sufficiently large mass flow of cathode fluid 33 in the gas space of the cathode 13 is required, whereby it has to be taken into account that part of the mass flow of the cathode fluid 33 is consumed by the reaction with the anode fluid 23 for energy conversion and thus the water absorption and thus the humidification is no longer available.
  • a stoichiometry of the cathode fluid 33 is defined as the ratio of a mass flow of cathode fluid 33 supplied to the cathode 13 and a mass flow of cathode fluid 33 consumed in the cathode 13 for power generation.
  • the electrical target power of the fuel cell system 10 which has been determined in step c) 102 of the method according to the invention, the mass flow of cathode fluid 33, which is consumed for the energy recovery, can be determined.
  • the setting of a stoichiometry for the cathode fluid 33 made in step d) 103 is determined in particular by the mass flow of unconsumed cathode fluid 33 required for a particularly complete absorption of water.
  • step e) 104 of the method according to the invention are regulated in step e) 104 of the method according to the invention.
  • step e) 104 of the method according to the invention it is possible to provide the amount of water resulting from the generation of energy a sufficiently large mass flow of unconsumed cathode fluid 33 which does not participate in the reaction.
  • this amount of water is completely or at least substantially completely absorbed by the cathode fluid 33.
  • An ideal humidity of the cathode fluid 33 can thus be ensured and in particular drying out or flooding of the fuel cell 11 can be prevented at any time.
  • external or internal humidifying devices can be dispensed with by a method according to the invention.
  • Fuel cell systems 10, which are designed to carry out a method according to the invention can thus be constructed on the one hand in a simpler manner and on the other hand more compactly.
  • FIG. 10 Such an inventive fuel cell system 10 is shown in FIG.
  • the fuel cell system 10 according to the invention in this case has in particular a control device 15, which is designed to carry out a method according to the invention.
  • a fuel cell 1 comprising an anode 12, a cathode 13 and a disposed between the anode 12 and cathode 13 membrane.
  • an anode fluid system 20 is provided provided, in particular, an anode fluid supply 21, an anode fluid removal 22 and a recirculation line 25 has.
  • the anode fluid 23 in the anode fluid system 20 is moved by a conveying device 24.
  • a cathode fluid system 30 is provided, which is designed to supply the cathode 13 with a cathode fluid 33.
  • the cathode fluid 33 is supplied to the cathode 13 in a cathode fluid supply 31 and, after flowing through the cathode 13, is led away from the cathode 13 by a cathode fluid discharge 32, for example, to be discharged to the environment as exhaust air.
  • a flush valve 26 is arranged, via which, for example, the anode fluid 23 can be removed from the anode fluid system 20, in particular at an operating end of the fuel cell system 10.
  • a mass flow control device 50 which is formed as a compressor 51, is arranged.
  • a mass flow of cathode fluid 33 supplied to the cathode 13 can be changed via this mass flow control device 50.
  • the heat generated by the compressor 51 of the cathode fluid 33 can be compensated by a cooling device 34 again.
  • pressure control device 40 is arranged in the cathode fluid removal 32 designed as a throttle valve 41. By this pressure control device 40, it is in particular possible to change the pressure of the cathode fluid 33.
  • the control device 15 may be designed such that the mass flow control device 50 and the pressure control device 40 can be controlled such that the mass flow of the cathode fluid 33 and the pressure of the cathode fluid 33 can be set or regulated independently of one another.
  • Both the anode fluid system 20 and the cathode fluid system 30 have a plurality of measuring devices, which may be designed, for example, as a mass flow sensor 16, pressure sensor 17 or temperature sensor 18. These measuring devices are in particular connected to the control device 15 for data exchange (not shown).
  • the temperature or the pressure of the cathode fluid 33 can be measured in the cathode fluid system 30 and transmitted to the control device 15.
  • this control device 15 which is used to carry out a According to the invention, a stoichiometry for the cathode fluid 33 is determined from these measured variables together with an electrical nominal power of the fuel cell system 10.
  • This stoichiometry of the cathode fluid 33 is chosen such that a quantity of water generated in the energy conversion in the cathode 13 of the fuel cell 1 1 can be completely absorbed in particular by a mass flow of unconsumed cathode fluid 33.
  • the control device 15 is designed to control the mass flow control device 50.
  • the mass flow control device 50 By increasing or decreasing a delivery rate of the mass flow control device 50 embodied here as a compressor 51, the mass flow of cathode fluid 33, which is supplied to the cathode 13, and thus with constant nominal electrical power of the fuel cell system 10, the stoichiometry of the cathode fluid 33 can be controlled particularly easily.
  • the pressure control device 40 is also actuated by the control device 15 in order to compensate for a pressure change when the mass flow changes.
  • a particularly safe and uniform operation of the fuel cell system 10 according to the invention can thereby be ensured.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un système de pile(s) à combustible (10), le système de pile(s) à combustible (10) comportant au moins une pile à combustible (11) pourvue d'une anode (12) et d'une cathode (13), un système fluidique anodique (20) comportant une alimentation en fluide anodique (21) et une évacuation en fluide anodique (22), un système fluidique cathodique (30) comportant une alimentation en fluide cathodique (31) et une évacuation de fluide cathodique (32), et un dispositif de commande (15). L'invention concerne également un système de pile(s) à combustible (10) comprenant au moins une pile à combustible (11) pourvue d'une anode (12) et d'une cathode (13), un système fluidique anodique (20) comportant une alimentation en fluide anodique (21) et une évacuation en fluide anodique (22), un système fluidique cathodique (30) comportant une alimentation en fluide cathodique (31) et une évacuation de fluide cathodique (32), et un dispositif de commande (15).
PCT/EP2015/075960 2015-01-21 2015-11-06 Procédé pour faire fonctionner un système de pile(s) à combustible et système de pile(s) à combustible associé WO2016116185A1 (fr)

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Application Number Priority Date Filing Date Title
DE102015100872.6 2015-01-21
DE102015100872 2015-01-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109960300A (zh) * 2017-12-14 2019-07-02 南京大学 一种燃料电池测试气体加湿方法
CN109960299A (zh) * 2017-12-14 2019-07-02 南京大学 一种大功率燃料电池电堆测试仪加湿模块

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DE102013204270A1 (de) * 2013-03-12 2014-09-18 Robert Bosch Gmbh Verfahren zum Regeln einer Feuchte eines Kathodengases einer Brennstoffzelle sowie Brennstoffzellenanordnung

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Publication number Priority date Publication date Assignee Title
DE10146943A1 (de) * 2001-09-24 2003-04-10 Gen Motors Corp Verfahren zum Betrieb eines Brennstoffzellensystems sowie Brennstoffzellensystem
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* Cited by examiner, † Cited by third party
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CN109960300A (zh) * 2017-12-14 2019-07-02 南京大学 一种燃料电池测试气体加湿方法
CN109960299A (zh) * 2017-12-14 2019-07-02 南京大学 一种大功率燃料电池电堆测试仪加湿模块
CN109960300B (zh) * 2017-12-14 2020-12-22 南京大学 一种燃料电池测试气体加湿方法
CN109960299B (zh) * 2017-12-14 2020-12-22 南京大学 一种大功率燃料电池电堆测试仪加湿模块

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